106 Commits
Author SHA1 Message Date
Javier NietoandLuiz Augusto von Dentz 97fdb2ea06 Bluetooth: hci_h5: implement CRC data integrity
The UART-based H5 protocol supports CRC data integrity checks for
reliable packets. The host sets bit 5 in the configuration field of the
CONFIG link control message to indicate that CRC is supported. The
controller sets the same bit in the CONFIG RESPONSE message to indicate
that CRC may be used from then on.

Tested on a MangoPi MQ-Pro with a Realtek RTL8723DS Bluetooth controller
using the tip of the bluetooth-next tree.

Signed-off-by: Javier Nieto <jgnieto@cs.stanford.edu>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-12-01 15:58:54 -05:00
Calvin OwensandLuiz Augusto von Dentz 1c5091a9b4 Bluetooth: Fix build after header cleanup
Some Kconfig dependencies are needed after my recent cleanup, since
the core code has its own option.

Since btmtksdio does not actually call h4_recv_buf(), move the
definitions it uses outside the BT_HCIUART_H4 gate in hci_uart.h to
avoid adding a dependency for btmtksdio.

The rest I touched (bpa10x, btmtkuart, and btnxpuart) do really call
h4_recv_buf(), so the dependency is required, add it for them.

Fixes: 0e272fc7e17d ("Bluetooth: remove duplicate h4_recv_buf() in header")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202508300413.OnIedvRh-lkp@intel.com/
Signed-off-by: Calvin Owens <calvin@wbinvd.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-09-20 10:57:44 -04:00
Hsin-chen ChuangandLuiz Augusto von Dentz f330734a63 Revert "Bluetooth: btusb: Configure altsetting for HCI_USER_CHANNEL"
This reverts commit 75ddcd5ad4.

This patch doesn't work quite well - It's observed that with this patch
HFP is flaky on most of the existing USB Bluetooth controllers: Intel
chips sometimes send out no packet for Transparent codec; MTK chips may
generate SCO data with a wrong handle for CVSD codec; RTK could split
the data with a wrong packet size for Transparent codec; ... etc.

Cc: chromeos-bluetooth-upstreaming@chromium.org
Signed-off-by: Hsin-chen Chuang <chharry@chromium.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-05-21 10:28:08 -04:00
Hsin-chen ChuangandLuiz Augusto von Dentz 75ddcd5ad4 Bluetooth: btusb: Configure altsetting for HCI_USER_CHANNEL
Automatically configure the altsetting for HCI_USER_CHANNEL when a SCO
is connected.

The motivation is to enable the HCI_USER_CHANNEL user to send out SCO
data through USB Bluetooth chips, which is mainly used for bidirectional
audio transfer (voice call). This was not capable because:

- Per Bluetooth Core Spec v5, Vol 4, Part B, 2.1, the corresponding
  alternate setting should be set based on the air mode in order to
  transfer SCO data, but
- The Linux Bluetooth HCI_USER_CHANNEL exposes the Bluetooth Host
  Controller Interface to the user space, which is something above the
  USB layer. The user space is not able to configure the USB alt while
  keeping the channel open.

This patch intercepts the HCI_EV_SYNC_CONN_COMPLETE packets in btusb,
extracts the air mode, and configures the alt setting in btusb.

This patch is tested on ChromeOS devices. The USB Bluetooth models
(CVSD, TRANS alt3 and alt6) could work without a customized kernel.

Fixes: b16b327edb ("Bluetooth: btusb: add sysfs attribute to control USB alt setting")
Signed-off-by: Hsin-chen Chuang <chharry@chromium.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-03-07 12:43:27 -05:00
Niklas SchnelleandArnd Bergmann f062b6ecc7 Bluetooth: add HAS_IOPORT dependencies
In a future patch HAS_IOPORT=n will disable inb()/outb() and friends at
compile time. We thus need to add HAS_IOPORT as dependency for those
drivers using them.

Co-developed-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Acked-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-10-28 21:44:27 +00:00
Yang LiandLuiz Augusto von Dentz 37bac77e46 Bluetooth: hci_uart: Add support for Amlogic HCI UART
Add a new HCI protocol HCI_UART_AML for the Amlogic Bluetooth
controller. It works on the standard H4 protocol via a 4-wire UART
interface, with baud rates up to 4 Mbps.

The controller supports two types of commands: the TCI commands and the
vendor command. The former is for initial setup including setting baud
rates, downloading fw, starting chip and etc, while the latter is for
dumping firmware versions and setting public address after firmware
updates and normal startup.

It was verified on board of T602 (S905X4 + W265S2).

dmesg:
..
[    5.313450] Bluetooth: HCI UART protocol AML registered
[    6.506052] Bluetooth: hci0: fw_version: date = 42.28, number = 0xb2fd
...

Co-developed-by: Ye He <ye.he@amlogic.com>
Signed-off-by: Ye He <ye.he@amlogic.com>
Signed-off-by: Yang Li <yang.li@amlogic.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-09-10 12:44:10 -04:00
Arnd BergmannandLuiz Augusto von Dentz 61f7a8f975 Bluetooth: btmtk: Fix btmtk.c undefined reference build error harder
The previous fix was incomplete as the link failure still persists
with CONFIG_USB=m when the sdio or serial wrappers for btmtk.c
are build-in:

btmtk.c:(.text+0x468): undefined reference to `usb_alloc_urb'
btmtk.c:(.text+0x488): undefined reference to `usb_free_urb'
btmtk.c:(.text+0x500): undefined reference to `usb_anchor_urb'
btmtk.c:(.text+0x50a): undefined reference to `usb_submit_urb'
btmtk.c:(.text+0x92c): undefined reference to `usb_control_msg'
btmtk.c:(.text+0xa92): undefined reference to `usb_unanchor_urb'
btmtk.c:(.text+0x11e4): undefined reference to `usb_set_interface'
btmtk.c:(.text+0x120a): undefined reference to `usb_kill_anchored_urbs'

Disallow this configuration.

Fixes: f0c83a23fc ("Bluetooth: btmtk: Fix btmtk.c undefined reference build error")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-07-26 10:56:05 -04:00
Krzysztof KozlowskiandLuiz Augusto von Dentz b96bac9607 Bluetooth: hci: fix build when POWER_SEQUENCING=m
BT_HCIUART_QCA, which is a bool and an HCI UART component, uses now
power sequencing, so we need to be sure BT_HCIUART_QCA=y and
POWER_SEQUENCING=m cannot happen:

  /usr/bin/aarch64-linux-gnu-ld: drivers/bluetooth/hci_qca.o: in function `qca_serdev_probe':
  drivers/bluetooth/hci_qca.c:2401:(.text+0xc48): undefined reference to `devm_pwrseq_get'
  /usr/bin/aarch64-linux-gnu-ld: drivers/bluetooth/hci_qca.o: in function `qca_power_shutdown':
  drivers/bluetooth/hci_qca.c:2192:(.text+0x29e8): undefined reference to `pwrseq_power_off'
  /usr/bin/aarch64-linux-gnu-ld: drivers/bluetooth/hci_qca.o: in function `qca_power_on':
  drivers/bluetooth/hci_qca.c:1808:(.text+0x3390): undefined reference to `pwrseq_power_on'

Fixes: 9a15ce6857 ("Bluetooth: qca: use the power sequencer for QCA6390")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-07-15 10:10:47 -04:00
Hector MartinandLuiz Augusto von Dentz 08c22b5226 Bluetooth: hci_bcm4377: Add BCM4388 support
This new variant needs a different core2_window1 and always uses
beamforming.
The BAR2 also has an offset (RAM start, presumably), so add that.

Signed-off-by: Hector Martin <marcan@marcan.st>
Reviewed-by: Sven Peter <sven@svenpeter.dev>
[sven: rebased, updated some comments, mentioned 4388 in Kconfig]
Signed-off-by: Sven Peter <sven@svenpeter.dev>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-07-14 21:34:34 -04:00
Tedd Ho-Jeong AnandLuiz Augusto von Dentz c2b636b3f7 Bluetooth: btintel_pcie: Add support for PCIe transport
Add initial code to support Intel bluetooth devices based on PCIe
transport. Allocate memory for TX & RX buffers, internal structures,
initialize interrupts for TX & RX and PCIe device.

Signed-off-by: Tedd Ho-Jeong An <tedd.an@intel.com>
Suggested-by: Bjorn Helgaas <helgaas@kernel.org>
Suggested-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Kiran K <kiran.k@intel.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-05-14 10:54:56 -04:00
Manish MandlikandLuiz Augusto von Dentz ab4e4380d4 Bluetooth: Add vhci devcoredump support
Add devcoredump support for vhci that creates forcce_devcoredump debugfs
entry. This is used for mgmt-tester tests.

Signed-off-by: Manish Mandlik <mmandlik@google.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2023-04-23 21:58:21 -07:00
Arnd BergmannandLuiz Augusto von Dentz 11e29b4a3f Bluetooth: NXP: select CONFIG_CRC8
The driver needs both CRC32 and CRC8 to link correctly:

ld: drivers/bluetooth/btnxpuart.o: in function `nxp_serdev_probe':
drivers/bluetooth/btnxpuart.c:1214: undefined reference to
`crc8_populate_msb'
ld: drivers/bluetooth/btnxpuart.o: in function `nxp_send_ack':
drivers/bluetooth/btnxpuart.c:559: undefined reference to `crc8'
ld: drivers/bluetooth/btnxpuart.c:559: undefined reference to `crc8'

Fixes: 3e662aa4453a ("Bluetooth: NXP: Add protocol support for NXP Bluetooth chipsets")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2023-04-23 21:56:11 -07:00
Neeraj Sanjay KaleandLuiz Augusto von Dentz 689ca16e52 Bluetooth: NXP: Add protocol support for NXP Bluetooth chipsets
This adds a driver based on serdev driver for the NXP BT serial protocol
based on running H:4, which can enable the built-in Bluetooth device
inside an NXP BT chip.

This driver has Power Save feature that will put the chip into sleep state
whenever there is no activity for 2000ms, and will be woken up when any
activity is to be initiated over UART.

This driver enables the power save feature by default by sending the vendor
specific commands to the chip during setup.

During setup, the driver checks if a FW is already running on the chip
by waiting for the bootloader signature, and downloads device specific FW
file into the chip over UART if bootloader signature is received..

Signed-off-by: Neeraj Sanjay Kale <neeraj.sanjaykale@nxp.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2023-04-23 21:51:55 -07:00
Sven PeterandLuiz Augusto von Dentz 8a06127602 Bluetooth: hci_bcm4377: Add new driver for BCM4377 PCIe boards
Broadcom BCM4377/4378/4387 are dual WiFi/Bluetooth boards found in Apple
machines. This driver adds support for the Bluetooth function which
exposes a shared memory IPC protocol over PCIe to tunnel HCI traffic.

Signed-off-by: Sven Peter <sven@svenpeter.dev>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2022-12-12 14:19:24 -08:00
Luiz Augusto von Dentz db11223571 Bluetooth: btusb: Default CONFIG_BT_HCIBTUSB_POLL_SYNC=y
poll_sync has been proven to fix races of USB data and event endpoints
so this enables it by default.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Tested-by: Tedd Ho-Jeong An <tedd.an@intel.com>
2022-12-12 14:19:24 -08:00
Luiz Augusto von Dentz bb1afb2955 Bluetooth: btusb: Add CONFIG_BT_HCIBTUSB_POLL_SYNC
This adds CONFIG_BT_HCIBTUSB_POLL_SYNC which can be used to set the
default behavior of Bluetooth USB controller with respect to poll
synchronization of its endpoits.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Tested-by: Tedd Ho-Jeong An <tedd.an@intel.com>
2022-12-12 14:19:24 -08:00
Sean WangandMarcel Holtmann f5c3f98946 Bluetooth: btmtkuart: rely on BT_MTK module
Rely on btmtk module to reduce duplicated code

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2022-03-18 17:12:07 +01:00
Sean WangandMarcel Holtmann 3a722044aa Bluetooth: btmtksido: rely on BT_MTK module
Rely on btmtk module to reduce duplicated code

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2021-10-25 15:36:23 +02:00
Sean WangandMarcel Holtmann 8c0d17b6b0 Bluetooth: mediatek: add BT_MTK module
Add BT_MTK module that is a preliminary patch to introduce mt7921s support
to share the logic betweem btusb and btmtksdio.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2021-10-25 15:36:23 +02:00
Marcel Holtmann afd2daa26c Bluetooth: Add support for virtio transport driver
This adds support for Bluetooth HCI transport over virtio.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2021-04-08 12:26:34 +02:00
Max ChouandMarcel Holtmann 848fc61641 Bluetooth: hci_h5: btrtl: Add support for RTL8822C
Add new compatible and FW loading support for RTL8822C.

Signed-off-by: Max Chou <max.chou@realtek.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2020-02-18 09:22:22 +01:00
Christophe JAILLETandMarcel Holtmann e22998f53a Bluetooth: Fix a typo in Kconfig
'internface' has an extra 'n'.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2020-02-16 13:29:58 +01:00
Sebastian ReichelandMarcel Holtmann 54976bc700 Bluetooth: btwilink: drop superseded driver
All users of this driver have been converted to the serdev based
hci_ll driver. The unused driver can be safely dropped now.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2019-10-16 21:12:52 +02:00
Sean WangandMarcel Holtmann a1c49c434e Bluetooth: btusb: Add protocol support for MediaTek MT7668U USB devices
This adds the support of enabling MT7668U Bluetooth function running
on the top of btusb driver.

The information in /sys/kernel/debug/usb/devices about the Bluetooth
device is listed as the below.

T:  Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=5000 MxCh= 0
D:  Ver= 3.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS= 9 #Cfgs=  1
P:  Vendor=0e8d ProdID=7668 Rev= 1.00
S:  Manufacturer=MediaTek Inc.
S:  Product=Wireless_Device
S:  SerialNumber=000000000
C:* #Ifs= 3 Cfg#= 1 Atr=a0 MxPwr=160mA
A:  FirstIf#= 0 IfCount= 2 Cls=e0(wlcon) Sub=01 Prot=01
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=125us
E:  Ad=82(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
I:  If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
I:  If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
I:  If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
I:  If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms
I:  If#= 1 Alt= 6 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  63 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  63 Ivl=1ms

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2019-07-06 21:44:25 +02:00
Sascha HauerandMarcel Holtmann be70e5e774 Bluetooth: hci_mrvl: Add serdev support
This adds serdev support to the Marvell hci uart driver. Only basic
serdev support, none of the fancier features like regulator or enable
GPIO support is added for now.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2019-07-06 12:53:56 +02:00